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Finding the Fourth Proportional to 341,430.30, 512,145.45 and 275,000.18

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Solution

The fourth proportional to 341,430.30, 512,145.45 and 275,000.18 is: 412,500.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,430.30 : 512,145.45 = 275,000.18 : x
  2. Step 2: Convert to fraction form
    341,430.30/512,145.45 = 275,000.18/x
  3. Step 3: Cross multiply
    341,430.30x = 512,145.45 × 275,000.18
  4. Step 4: Simplify right side
    341,430.30x = 140,840,088,375.45
  5. Step 5: Solve for x
    x = 140,840,088,375.45/341,430.30
  6. Step 6: Final answer
    x = 412,500.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.